28.3 : 9 and estimated

If 20 pounds of flour were needed to make 31 pounds of bread, how many pounds of other ingredients would be needed to produce 60 pounds of bread?

What is the product of two integers that equal - 21

Joe deposits $30,000 for his retirement in an account with a 6% simple interest rate. How long will it take Joe to earn $21,600 in interest?

Teach me how to do surface area

1/5 multiplied by 7/10

Find the rate of change for the solution you run 7 miles in one hour and 14 miles in two hours

Express 12,312,087 in words

Ian finds 9$ for each hour he works and 10$ for each day he works. To find out how much he makes in a day, he made the equation y=9x+10x, where x is the number of hours he works.

N 2008, the Queen Sesheshet Pyramid was discovered in Egypt. Archeologists determined that the original height of this right square pyramid was about 14 m and the original base side length was about 22 m.

Solve this system - 10x, 5x by elimination